Stenostiridae, or the fairy flycatchers,[1] are a family of small passerine birds proposed as a result of recent discoveries in molecular systematics.

This is united with the "sylvioid flycatchers": the genus Elminia (formerly placed in the Monarchinae) and the closely allied former Old World flycatcher genus Culicicapa, as well as one species formerly believed to be an aberrant fantail.

The tit-flycatchers (Myioparus) are apparently true flycatchers morphologically somewhat convergent to Stenostira.

[4] The Stenostiridae as a whole are related to penduline tits, titmice and chickadees.

All these appear to be closer to the Sylvioidea than to other Passerida, but this is not robustly supported by the available data and they might constitute a distinct, more basal superfamily.